[xcode10.1] [mediaplayer] Fix NRE in MPNowPlayingInfoCenter wrt null dictionary entries. Fixes #4988 - #4997
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spouliot merged 1 commit intoOct 17, 2018
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…ntries. Fixes dotnet#4988 The custom `TryGetValue` could return `true` and an `out null`. That was fine for many items, e.g. converting `null` to `NSString` or `NSDate` is fine. However this cause an `NullReferenceException` when trying to create arrays (thru `NSArray`) or converting `NSNumber` into value types. The _normal_ `TryGetValue` behavior fixes this - and avoid extraneous (and non-required) conversions of `null` items. ref: dotnet#4988
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rolfbjarne
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Oct 17, 2018
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Backport of #4992.
/cc @spouliot
Description:
The custom
TryGetValuecould returntrueand anout null. That wasfine for many items, e.g. converting
nulltoNSStringorNSDateisfine.
However this cause an
NullReferenceExceptionwhen trying to createarrays (thru
NSArray) or convertingNSNumberinto value types.The normal
TryGetValuebehavior fixes this - and avoid extraneous(and non-required) conversions of
nullitems.ref: #4988